Various handcrafted-based image compression standards have been proposed over the past decades, such as  [1]}, [2]}, [3]}.
The newest hand-designed image compression methods are developed from video standards. With block partitioning, intra prediction, residual compression, and other modules, they require about half the storage space as the equivalent quality JPEG (including fixed block partition, DCT/IDCT transform, and Huffman Coding).
